Home/CVE/A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c,
CVE

CVE-2021-3744

A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c,

A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption). This vulnerability is similar with the older CVE-2019-18808.

MEDIUM · CVSS 5.5 EPSS 0.00011
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-401Missing Release of Memory after Effective Lifetime
CWE-401Missing Release of Memory after Effective Lifetime
▤

Affected Products & Versions

24
linux kernel< 5.15
linux kernelall versions
fedoraproject fedoraall versions
debian linuxall versions
redhat build of quarkusall versions
redhat codeready linux builderall versions
redhat codeready linux builder eusall versions
redhat codeready linux builder for power little endianall versions
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD04 Mar 2022 · 04:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

30
rhsaRHSA-2022:1988Low
rhsaRHSA-2022:1975Moderate
suse-csafopenSUSE-SU-2024:10728-1
suse-csafopenSUSE-SU-2024:13704-1
msrcCVE-2021-3744
🔗

References & Sources

11
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2021/09/14/1ExploitMailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2000627Issue TrackingThird Party Advisory
https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680PatchThird Party Advisory
https://kernel.googlesource.com/pub/scm/linux/kernel/git/herbert/crypto-2.6/+/505d9dcb0f7ddf9d075e729523a33d38642ae680%5E%21/#F0Mailing ListPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7BLLVKYAIETEORUPTFO3TR3C33ZPFXQM/
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